<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="root"></div>
    <script src="./vue3基础源码/vue3.js"></script>
    <script>
        const app = Vue.createApp({
            data(){
                return {
                    num:1
                }
            },
            methods:{
                handledata(){
                    this.num += 1;
                }
            },
            template:`<test v-model="num" @add-one="handledata"/>`
        });

        app.component("test",{
            props:['modelValue'],
            template:`

                    <div @click="handleClick">{{modelValue}}</div>

                `,
            methods:{
                handleClick(){
                    this.$emit("addOne")
                }
            }
        })
        
        app.mount("#root");
    </script>
</body>
</html>